28 lines
590 B
Python
28 lines
590 B
Python
from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from app.config import settings
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# 创建数据库引擎
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engine = create_engine(
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settings.database_url,
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pool_pre_ping=True,
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pool_size=10,
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max_overflow=20
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)
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# 创建会话工厂
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# 创建基类
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Base = declarative_base()
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def get_db():
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"""获取数据库会话的依赖函数"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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